How about:
primary - shotgun like
secondary - melee + laser at once. Weapon fires laser-like shot with all its aspects, extending stabbing part at the same time.
Pros:
+no functionality is effectively lost
+all combined into one weapon
+no extra buttons required
Cons:
-Melee would result in some self damage (well, maybe unless some workaround checking for range was coded)
-Stabbing doesn't quite pass for "trouting".
Other:
*Melee hit would knock enemy back (not sure if this is a con at all, may be a pro - it is a significant game changer anyway)
*No charging (but charging isn't universally beloved idea anyway, so I'm not sure if it's a con)
primary - shotgun like
secondary - melee + laser at once. Weapon fires laser-like shot with all its aspects, extending stabbing part at the same time.
Pros:
+no functionality is effectively lost
+all combined into one weapon
+no extra buttons required
Cons:
-Melee would result in some self damage (well, maybe unless some workaround checking for range was coded)
-Stabbing doesn't quite pass for "trouting".
Other:
*Melee hit would knock enemy back (not sure if this is a con at all, may be a pro - it is a significant game changer anyway)
*No charging (but charging isn't universally beloved idea anyway, so I'm not sure if it's a con)